28017905

素因数分解:

$5^1\times {\mathrm{101}}^1\times {\mathrm{109}}^1\times {\mathrm{509}}^1$

素因数の和:724

約数の個数: 16

約数和(自身を含む): 34333200

約数和(自身を除く): 6315295

約数列:

[1, 5, 101, 109, 505, 509, 545, 2545, 11009, 51409, 55045, 55481, 257045, 277405, 5603581, 28017905]

約数ペア:

[(1, 28017905), (5, 5603581), (101, 277405), (109, 257045), (505, 55481), (509, 55045), (545, 51409), (2545, 11009)]